RETRO ARMS CNC HOP UP CHAMBER M4/AR-15 UNI

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RetroArms CNC Hop-Up Chamber, compatible with Marui and similar models.
The kit includes: adjustment wheel, C-clip, barrel stop, Oring, standard arm and arm with polymer PMS.

TENSION SPRING IS NOT INCLUDED.

Tags: RETRO ARMS CNC HOP UP CHAMBER M4/AR-15 UNI , 6388 , Hop-Up Group

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